debonair, airy, free, free and easy, easy, buoyant, sprightly, carefree, lighthearted, light, sportive, sporty, dapper, natty, breezy, blithe, nonchalant, insouciant, devil-may-care, rakish, raffish, dashing, high-spirited, animated, spirited, lively, gay, jovial, jolly, joking, frisky, perky, chipper, bouncy, confident, swaggering, cocky, bold, reckless, careless, swashbuckling, venturesome, provocative, hoydenish, frolicsome, jocose, rollicking, gamesome, vivacious, prankish, playful, cocksure, impish, devilish, brash, forward, exhilarated, impetuous, assured, presumptuous, sporting, facetious, scampish, merry, waggish, irreverent, roistering, conceited, strutting, flippant, flip, audacious, bumptious, impertinent, saucy, cheeky, pert, brazen, cavalier; see also happy 1, nonchalant.
Antonyms reserved*, staid, sedate.
